The invention relates to the technical fields of binaural audio rendering and, to this end, estimation of room acoustic parameters like reverberation time. In particular, the invention provides a device and method for estimating such acoustic parameters. The device is configured to record an acoustic signal, particularly a speech signal, to estimate a frequency-dependent reverberation time in a lower frequency range based on the recorded acoustic signal, and to extend the frequency-dependent reverberation time to a higher frequency range based on a predetermined model to obtain an extended frequency-dependent reverberation time. Virtual 3D audio can thus be adapted to a real room.
Legal claims defining the scope of protection, as filed with the USPTO.
4. The device according to claim 1, wherein the predetermined model describes a reverberation time change from lower frequencies included in the lower frequency range to higher frequencies included in the higher frequency range.
14. The device according to claim 1, wherein the extended frequency-dependent reverberation time is determined further based on the frequency-dependent reverberation time in the lower frequency range.
15. The method according to claim 12, wherein the extended frequency-dependent reverberation time is determined further based on the frequency-dependent reverberation time in the lower frequency range.
16. The non-transitory computer readable medium according to claim 13, wherein the extended frequency-dependent reverberation time is determined further based on the frequency-dependent reverberation time in the lower frequency range.
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March 18, 2021
June 6, 2023
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